Also known as "Foot Down" a bike derby is a contest, the goal of which is to be the last person still riding their bike. Modeled somewhere between a Demolition derby and a Roller derby, a bike derby adds the element of maintaining balance on a bicycle while causing other contentants' to lose their balance and step or fall to the ground. When a contestant touches the ground, they are considered out of the derby.

Ghost BikeAdditionally, a newer trend of 'Ghost Biking' has become part of a derby. A 'Ghost Bike' is a riderless bike that is often rolled into the mix by someone on the sidelines. The intention of this is to knock someone off their bike.